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The impact of anthropogenic food supply on fruit consumption by dusky-legged guan (Penelope obscura Temminck, 1815): potential effects on seed dispersal in an Atlantic forest area

Overview of attention for article published in Brazilian Journal of Biology, November 2015
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Title
The impact of anthropogenic food supply on fruit consumption by dusky-legged guan (Penelope obscura Temminck, 1815): potential effects on seed dispersal in an Atlantic forest area
Published in
Brazilian Journal of Biology, November 2015
DOI 10.1590/1519-6984.05714
Pubmed ID
Authors

J. Vasconcellos-Neto, R. R. Ramos, L. P. Pinto

Abstract

AbstractFrugivorous birds are important seed dispersers and influence the recruitment of many plant species in the rainforest. The efficiency of this dispersal generally depends on environment quality, bird species, richness and diversity of resources, and low levels of anthropogenic disturbance. In this study, we compared the sighting number of dusky-legged guans (Penelope obscura) by km and their movement in two areas of Serra do Japi, one around the administrative base (Base) where birds received anthropogenic food and a pristine area (DAE) with no anthropogenic resource. We also compared the richness of native seeds in feces of birds living in these two areas. Although the abundance of P. obscura was higher in the Base, these individuals moved less, dispersed 80% fewer species of plants and consumed 30% fewer seeds than individuals from DAE. The rarefaction indicated a low richness in the frugivorous diet of birds from the Base when compared to the populations from DAE. We conclude that human food supply can interfere in the behavior of these birds and in the richness of native seeds dispersed.

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Mendeley readers

The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 33 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 9 27%
Student > Ph. D. Student 6 18%
Student > Master 5 15%
Researcher 2 6%
Student > Doctoral Student 1 3%
Other 2 6%
Unknown 8 24%
Readers by discipline Count As %
Agricultural and Biological Sciences 15 45%
Environmental Science 5 15%
Earth and Planetary Sciences 1 3%
Biochemistry, Genetics and Molecular Biology 1 3%
Social Sciences 1 3%
Other 2 6%
Unknown 8 24%